Following their guide, the patrol got through. It was pitch dark. Dick switched on his electric torch. Down the steps they crept.

“This is the door to the passage,” said Danny, as the Scouts reached the low archway.

“How many spies are in the passage?” asked Dick.

“One,” said Danny.

“Two of you chaps—Bill and Knobby—stay here on guard. Have you got staves?”

“Yes.”

And axes,” added Knobby, with a ferocious emphasis.

“If any one tries to open that door from the inside, keep it shut—see?”

“Right,” said Bill.

With Danny leading the way, the party, now minus two, crept out again into the sunlight.